Nice UI decision to highlight certain text in pink to proceed to the next screen -- not sure if it's built in or was inspired by a different game, but it's the first time I've seen it!
I love the sudden switch of the Lydia's characterization at the very beginning, and wondered if she was a sociopath. Her control-focused tone reminded me a little of the protagonist-narrators from "You" and "Dexter."
In general, the written narrative voice could have used some polish, and there's some minor formatting errors, but the story's pacing and concept started very strong. I loved the twist with Daniel when she confesses to him, and was very excited for the POV switch. As Daniel thinks about Lydia, I also found myself wholly intrigued and wondering what was up with her.
The characters -- particularly the side characters -- are nicely grounded and remind me of people I've met in real life.
Towards the end, the story does rather become walls of text, as less actual events occur and we stick more to Lydia's anxious inner thoughts. Still, I got an unexpectedly wholesome ending my first try and that was nice enough to get me to replay for 100% completion.
Btw I really thought Lydia was plotting to murder her friends this whole time and that she was quietly looking forward to it lol. I was surprised by how tame the story ended up being, but not unpleasantly so. The story drew me in with sheer suspense at the start, but I'm grateful that it's not the same old "dark for dark's sake" -- if that makes sense.
Overall, it's an interesting premise with good characters, and I'm glad I played it. Thank you for sharing!
*Edits: I made a couple of additions and fixed some words I goofed on. :)